Cargando…

A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor

This paper presents a novel, non-invasive, non-contact system to measure pulse waveforms of artery via applying laser triangulation method to detect skin surface vibration. The proposed arterial pulsation measurement (APM) system chiefly consists of a laser diode and a low cost complementary metal-o...

Descripción completa

Detalles Bibliográficos
Autores principales: Wu, Jih-Huah, Chang, Rong-Seng, Jiang, Joe-Air
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3841900/
https://www.ncbi.nlm.nih.gov/pubmed/28903299
_version_ 1782292861671178240
author Wu, Jih-Huah
Chang, Rong-Seng
Jiang, Joe-Air
author_facet Wu, Jih-Huah
Chang, Rong-Seng
Jiang, Joe-Air
author_sort Wu, Jih-Huah
collection PubMed
description This paper presents a novel, non-invasive, non-contact system to measure pulse waveforms of artery via applying laser triangulation method to detect skin surface vibration. The proposed arterial pulsation measurement (APM) system chiefly consists of a laser diode and a low cost complementary metal-oxide semiconductor (CMOS) image sensor. Laser triangulation and centroid method are combined with the Fast Fourier Transform (FFT) in this study. The shape and frequency of the arterial pulsation can be detected rapidly by using our APM system. The relative variation of the pulse at different measurement points near wrist joint is used as a prognostic guide in traditional Chinese medicine (TCM). An extensive series of experiments was conducted to evaluate the performance of the designed APM system. From experimental results, the pulse amplitude and frequency at the Chun point (related to the small intestine) of left hand showed an obvious increase after having food. In these cases, the peak to peak amplitudes and the frequencies of arterial pulsations range from 38 to 48 μm and from 1.27 to 1.35 Hz, respectively. The height of arterial pulsations on the area near wrist joint can be estimated with a resolution of better than 4 μm. This research demonstrates that applying a CMOS image sensor in designing a non-contact, portable, easy-to-use, low cost pulse measurement system is feasible. Also, the designed APM system is well suited for evaluating and pre-diagnosing the health of a human being in TCM clinical practice.
format Online
Article
Text
id pubmed-3841900
institution National Center for Biotechnology Information
language English
publishDate 2007
publisher Molecular Diversity Preservation International (MDPI)
record_format MEDLINE/PubMed
spelling pubmed-38419002013-11-29 A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor Wu, Jih-Huah Chang, Rong-Seng Jiang, Joe-Air Sensors (Basel) Full Research Paper This paper presents a novel, non-invasive, non-contact system to measure pulse waveforms of artery via applying laser triangulation method to detect skin surface vibration. The proposed arterial pulsation measurement (APM) system chiefly consists of a laser diode and a low cost complementary metal-oxide semiconductor (CMOS) image sensor. Laser triangulation and centroid method are combined with the Fast Fourier Transform (FFT) in this study. The shape and frequency of the arterial pulsation can be detected rapidly by using our APM system. The relative variation of the pulse at different measurement points near wrist joint is used as a prognostic guide in traditional Chinese medicine (TCM). An extensive series of experiments was conducted to evaluate the performance of the designed APM system. From experimental results, the pulse amplitude and frequency at the Chun point (related to the small intestine) of left hand showed an obvious increase after having food. In these cases, the peak to peak amplitudes and the frequencies of arterial pulsations range from 38 to 48 μm and from 1.27 to 1.35 Hz, respectively. The height of arterial pulsations on the area near wrist joint can be estimated with a resolution of better than 4 μm. This research demonstrates that applying a CMOS image sensor in designing a non-contact, portable, easy-to-use, low cost pulse measurement system is feasible. Also, the designed APM system is well suited for evaluating and pre-diagnosing the health of a human being in TCM clinical practice. Molecular Diversity Preservation International (MDPI) 2007-12-19 /pmc/articles/PMC3841900/ /pubmed/28903299 Text en © 2007 by MDPI (http://www.mdpi.org). Reproduction is permitted for noncommercial purposes.
spellingShingle Full Research Paper
Wu, Jih-Huah
Chang, Rong-Seng
Jiang, Joe-Air
A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
title A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
title_full A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
title_fullStr A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
title_full_unstemmed A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
title_short A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
title_sort novel pulse measurement system by using laser triangulation and a cmos image sensor
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3841900/
https://www.ncbi.nlm.nih.gov/pubmed/28903299
work_keys_str_mv AT wujihhuah anovelpulsemeasurementsystembyusinglasertriangulationandacmosimagesensor
AT changrongseng anovelpulsemeasurementsystembyusinglasertriangulationandacmosimagesensor
AT jiangjoeair anovelpulsemeasurementsystembyusinglasertriangulationandacmosimagesensor
AT wujihhuah novelpulsemeasurementsystembyusinglasertriangulationandacmosimagesensor
AT changrongseng novelpulsemeasurementsystembyusinglasertriangulationandacmosimagesensor
AT jiangjoeair novelpulsemeasurementsystembyusinglasertriangulationandacmosimagesensor